Current filter:
          You should refresh the page.
          Not Logged In

          How to show a tooltip with a series point's data

          0

          This example demonstrates how to display custom information from the underlying data source in a tooltip for every series point, using the ToolTipController component.

          See also:
          - How to show custom data over WebChartControl using ASPxPopupControl;
          - How to show series labels for hot-tracked points;
          - How to accompany a chart, its pane or series point by text or image annotations.

          Leave a comment
          You must  log in  or  register  to leave comments
          Select file
          • Form1.cs
          Select language
          • C#
          • VB.NET
          Select version
          • v2009 vol 3.2 - v2012 vol 1.2
          using System;
using System.Data;
using System.Windows.Forms;
using DevExpress.XtraCharts;
using DevExpress.Utils;

namespace docShowSeriesPointTooltip {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        private ToolTipController toolTipController1 = new ToolTipController();

        private void Form1_Load(object sender, EventArgs e) {
            // TODO: This line of code loads data into the 'nwindDataSet.Products' table. You can move, or remove it, as needed.
            this.productsTableAdapter.Fill(this.nwindDataSet.Products);

        }

        private void chartControl1_ObjectHotTracked(object sender, HotTrackEventArgs e) {
            SeriesPoint point = e.AdditionalObject as SeriesPoint;

            if (point != null) {
                DataRowView rowView = (DataRowView)point.Tag;

                string s = "Unit price = " + rowView["UnitPrice"].ToString() +
                    "\r\nUnits in stock = " + rowView["UnitsInStock"].ToString() +
                    "\r\nQuantity per unit = " + rowView["QuantityPerUnit"].ToString();
                toolTipController1.ShowHint(s);
            }
            else
                toolTipController1.HideHint();
        }
    }
}